This antenna features a 2.15dBi signal with up to 20W of power can boost the signal of your radio significantly Connector SMA-F; length 7.87 inches(20cm); dual frequency144/430MHz (136-174+400-470)MHz The excellent ABS heat shrinkable sleeve material not only protect your radio but also for a long time use Small body but big performance can extend the range of your radio communication and easy to pack up SMA-F antenna compatible with Retevis RT-5R RT6 RT7 RT29 BAOFENG BF-F8HP UV5R UV-82 Kenwood TK-250 and more